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7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sterling, IL
Content continues below
May
Average Temperature
High
23°
Feels 23
Low
11°
Feels 9
Average Precipitation
13 Days
Rain amount
113.4mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
22°
23
25°
24
26°
25
29°
26
28°
27
28°
28
25°
29
25°
30
24°
31
25°
Forecast
Friday, May 22, 2026
Day
22°
Feels 22
Wind
26 km/h E
Gust
38 km/h
Humidity
48%
P.O.P
30%
Night
13°
Feels 12
Wind
24 km/h E
Gust
30 km/h
Humidity
94%
P.O.P
30%
Historical Averages
May 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.